|
Protective : 169 phrases in 24 subjects |
| Cables and cable production | 1 |
| Childish | 3 |
| Computers | 2 |
| Construction | 12 |
| Ecology | 1 |
| Electric machinery | 29 |
| Electric traction | 2 |
| Electrical engineering | 4 |
| Electricity generation | 4 |
| Electronics | 10 |
| General | 43 |
| Isolation | 19 |
| Law | 4 |
| Lighting other than cinema | 1 |
| Microsoft | 1 |
| Nuclear physics | 3 |
| Physics | 2 |
| Power lines | 1 |
| Radiology | 9 |
| Rail transport | 1 |
| Risk Management | 1 |
| Technology | 12 |
| Transformers | 3 |
| Welding | 1 |